EP3505671B1 - Wäschebehandlungsvorrichtung und steuerungsverfahren dafür - Google Patents

Wäschebehandlungsvorrichtung und steuerungsverfahren dafür Download PDF

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Publication number
EP3505671B1
EP3505671B1 EP18215829.5A EP18215829A EP3505671B1 EP 3505671 B1 EP3505671 B1 EP 3505671B1 EP 18215829 A EP18215829 A EP 18215829A EP 3505671 B1 EP3505671 B1 EP 3505671B1
Authority
EP
European Patent Office
Prior art keywords
water
tub
level
temperature
wash water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18215829.5A
Other languages
English (en)
French (fr)
Other versions
EP3505671A1 (de
Inventor
Jongseok JUNG
Seongmin Jang
Bokyung Cho
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LG Electronics Inc
Original Assignee
LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP3505671A1 publication Critical patent/EP3505671A1/de
Application granted granted Critical
Publication of EP3505671B1 publication Critical patent/EP3505671B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/44—Control of the operating time, e.g. reduction of overall operating time
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/36—Driving arrangements  for rotating the receptacle at more than one speed
    • D06F37/38—Driving arrangements  for rotating the receptacle at more than one speed in opposite directions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/56—Remaining operation time; Remaining operational cycles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a laundry treatment apparatus and a control method thereof.
  • the term "laundry treatment apparatus” commonly designates various kinds of apparatuses for removing contaminants from clothing, bedding, etc. (hereinafter, referred to as 'laundry') using a chemical decomposition action of water and detergent and a physical action, such as friction, between water and laundry.
  • the laundry treatment apparatus is basically configured to have a structure in which a drum for receiving laundry is rotatably installed.
  • the laundry treatment apparatus may be classified as a front loading type laundry treatment apparatus, into which laundry is introduced through an introduction port provided in the front surface thereof, and a top loading type laundry treatment apparatus, into which laundry is introduced through an introduction port provided in the upper surface thereof.
  • the top loading type laundry treatment apparatus includes a cabinet, a tub disposed in the cabinet, the tub being provided in the upper surface thereof with an introduction port, a drum rotatably disposed in the tub, and a door for opening and closing the introduction port.
  • a door may be disposed at the top of the tub so as to be connected to the tub in order to open and close the open top of the tub
  • a top cover may be disposed at the remaining portion of the top of the tub, excluding the portion of the top of the tub at which the door is disposed, in order to cover the tub.
  • a laundry treatment apparatus performs washing, rinsing, and spin drying (drying) according to input operation settings in order to remove contaminants from laundry.
  • the laundry treatment apparatus sets the temperature of water as well as a washing course.
  • the laundry treatment apparatus may heat the wash water such that washing is performed at the set temperature.
  • Korean Patent Application Publication No. 1991-0018530 discloses a washing method of a boiling washing machine, wherein wash water is heated using a heater in order to perform soak washing.
  • the total operation time may be changed due to heating of the wash water.
  • the time required until the temperature of the wash water reaches a predetermined temperature may vary depending on the level of the wash water. Furthermore, much more time than a basically set time may be taken. As a result, washing may not be completed even after an expected operation time has elapsed.
  • WO 2015/059825 A1 relates to a washing machine according to the state of the art.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a laundry treatment apparatus that is capable of resetting and displaying an operation time depending on whether it is necessary to heat wash water and a control method thereof.
  • a laundry treatment apparatus including a tub having therein a space for storing wash water, a drum rotatably provided in the tub, a heater for heating the wash water in the tub, a temperature sensor for sensing the temperature of the wash water, an output unit for displaying the operation settings and an operation state thereof, and a controller for primarily calculating an operation time based on the operation settings and outputting the primarily calculated operation time through the output unit and for calculating a heating time based on state of supplied wash water to the tub and recalculating the operation time such that the heating time is included in the operation time and outputting the recalculated operation time through the output unit when supply of wash water to the tub is completed, and wherein the state of supplied wash water to the tub includes the water temperature sensed by the temperature sensor during supply of water and the level of the wash water supplied to the tub sensed by the water level sensor, wherein the controller divides the level of the wash water into a plurality of water levels and applies different temperature change rates to the
  • the controller is configured to calculate a heating time based on the level of the wash water and the water temperature sensed during supply of water and to recalculate the operation time such that the heating time is included in the operation time.
  • the controller is configured to calculate a difference between the water temperature sensed by the temperature sensor and a target water temperature based on the operation settings in order to calculate the heating time.
  • the controller is configured to divide the level of the wash water into a plurality of water levels and to apply different temperature change rates to the respective water levels in order to calculate the heating time.
  • the controller is configured to calculate the heating time according to a first temperature change rate.
  • the controller is configured to calculate the heating time according to a second temperature change rate.
  • the laundry treatment apparatus further comprises a water level sensor for sensing the level of the wash water.
  • the controller is configured to calculate the heating time using one of the water level sensed by the water level sensor and a target water level designated for each washing course according to the operation settings as the level of the wash water.
  • the controller is configured to primarily calculate the operation time based on a washing course according to the operation settings and a predetermined basic heating time.
  • the output unit is configured to primarily output the operation time after the operation settings are input according to a control command of the controller.
  • the output unit is configured to secondarily output the recalculated operation time when the supply of water to the tub is completed.
  • a control method of a laundry treatment apparatus comprising inputting operation settings, primarily calculating an operation time based on a washing course according to the operation settings and outputting the primarily calculated operation time, sensing a temperature of wash water supplied to a tub, sensing a level of the wash water, calculating a heating time based on the state of supplied wash water to the tub, recalculating the operation time such that the heating time is included in the operation time, and secondarily outputting the recalculated operation time when supply of water to the tub is completed, wherein the state of supplied wash water to the tub includes the water temperature sensed by temperature sensor during supply of water and the level of the wash water supplied to the tub sensed by water level sensor, wherein the step of recalculating the operation time comprises dividing the level of the wash water into a plurality water levels and applying different temperature change rates to the respective water levels in order to calculate the heating time.
  • the step of recalculating the operation time comprises calculating a difference between the temperature of wash water and a target water temperature based on the operation settings.
  • the step of recalculating the operation time comprises calculating a heating time according to a temperature change rate set depending on a level of the wash water, the operation time being recalculated such that the heating time is included in the operation time.
  • the step of recalculating the operation time comprises dividing the level of the wash water into a plurality of water levels and applying different temperature change rates to the respective water levels in order to calculate the heating time until the temperature of wash water reaches the target water temperature.
  • the step of recalculating the operation time comprises in a case in which the level of the wash water is higher than a predetermined water level, calculating the heating time according to a first temperature change rate.
  • the step of recalculating the operation time comprises in a case in which the level of the wash water is equal to or lower than the predetermined water level, calculating the heating time according to a second temperature change rate.
  • the step of recalculating the operation time comprises calculating the heating time using one of a water level sensed by a water level sensor and a target water level designated for each washing course according to the operation settings as the level of the wash water.
  • the step of primarily outputting the operation time comprises calculating the operation time based on a washing course according to the operation settings and a predetermined basic heating time.
  • the method further comprises determining that heating is unnecessary and maintaining the primarily calculated operation time in one of a case in which washing according to the operation settings is washing using cold water, a case in which the water temperature is equal to a target water temperature, and a case in which a water temperature difference is within an error range.
  • each unit including a controller may be constituted by at least one processor.
  • FIG. 1 is a perspective view of a laundry treatment apparatus according to an embodiment of the present invention.
  • the laundry treatment apparatus according to the present invention which is an apparatus that washes, rinses, spin-dries, and/or dries laundry, may be configured to include only a first laundry treatment apparatus 100 or to include both a first laundry treatment apparatus 100 and a second laundry treatment apparatus 10 disposed on the first laundry treatment apparatus 100.
  • the laundry treatment apparatus may be configured such that the second laundry treatment apparatus 10 is disposed on the first laundry treatment apparatus 100.
  • this is merely an example.
  • only the first laundry treatment apparatus 100 may be independently provided.
  • the second laundry treatment apparatus 10 is disposed below the first laundry treatment apparatus 100.
  • the second laundry treatment apparatus 10 may include a second cabinet 20, which defines the external appearance thereof, and a second door 30 for opening and closing the front of the second cabinet 20.
  • the second laundry treatment apparatus 10 may further include a second tub (not shown) disposed in the second cabinet 20 for defining a space for storing wash water, a second drum (not shown) rotatably disposed in the second tub for defining a space for storing laundry, a second water supply unit (not shown) for supplying wash water to the second tub, and a second drainage unit (not shown) for discharging the wash water stored in the second tub out of the second cabinet 20.
  • FIG. 2 is a perspective view of a first laundry treatment apparatus according to an embodiment of the present invention.
  • FIG. 3 is a perspective view showing the state in which a drawer of the first laundry treatment apparatus according to the embodiment of the present invention is withdrawn.
  • FIG. 4 is a sectional view of the first laundry treatment apparatus according to the embodiment of the present invention.
  • FIG. 5 is an exploded perspective view showing a drawer according to an embodiment of the present invention and elements disposed in the drawer.
  • FIG. 6 is a plan view of the drawer according to the embodiment of the present invention.
  • FIG. 7 is a perspective view showing the state in which a door of the drawer according to the embodiment of the present invention is open.
  • laundry treatment apparatus the first laundry treatment apparatus according to the embodiment of the present invention (hereinafter, simply referred to as a "laundry treatment apparatus") will be described with reference to FIGS. 2 to 7 .
  • the first laundry treatment apparatus includes a cabinet 110, which defines the external appearance thereof, the cabinet 110 being open at one side thereof, a drawer 120 disposed so as to be withdrawn through the open side of the cabinet 110, the drawer 120 being open at the top thereof, a tub 170 disposed in the drawer 120 for defining a space for storing wash water, a drum 210 rotatably disposed in the tub 170, a door 190 for opening and closing the top of the tub 170, which is open, a top cover 140 for covering the open top of the drawer 120, the top cover 140 being disposed along the outer circumference of the door 190 so as to be spaced apart from the door 190 by a predetermined distance, and a shock absorption unit disposed at the tub 170 or disposed so as to be opposite the tub 170 for preventing the top cover 140 from contacting the door 190.
  • the laundry treatment apparatus 100 may further include a plurality of suspension members (not shown) disposed between the tub 170 and the drawer 120.
  • One end of each of the suspension members may be connected to the inner upper part of the drawer 120, and the other end of each of the suspension members may be connected to the outer lower part of the tub 170.
  • the cabinet 110 defines the external appearance of the laundry treatment apparatus.
  • the cabinet 110 has therein a space for receiving the drawer 120.
  • the cabinet 110 may have a box shape that is open at the front thereof.
  • the cabinet 110 may be provided in the rear surface thereof with a though-hole, through which a portion of a water supply unit 240 or a drainage unit 250 extends.
  • a separate base 126 may be mounted to the bottom of the cabinet 110.
  • the drawer 120 is disposed so as to be withdrawn through the front open side of the cabinet 110.
  • the drawer 120 may be received in the cabinet 110, or may be disposed such that a portion of the drawer 120 is withdrawn ahead of the cabinet 110.
  • the drawer 120 has therein a space for receiving the tub 170.
  • the top of the drawer 120 is open.
  • the drawer 120 is disposed so as to be movable along the inner surface of the cabinet 110.
  • the drawer 120 includes a drawer body 122, which defines a space for receiving the tub 170, the drawer body 122 being inserted into the cabinet, and a drawer panel 124 disposed at the front of the drawer body 122 for opening and closing the open front of the cabinet 110.
  • drawer brackets 130 Inside the drawer body 122 are formed drawer brackets 130, to which the suspension members are connected.
  • the drawer brackets 130 are formed at the inner upper part of the drawer body 122 so as to protrude.
  • four drawer brackets 130 are disposed at respective inner corners of the drawer body 122.
  • the drawer brackets 130 protrude toward the center of the tub 170.
  • Each of the drawer brackets 130 is provided with a suspension hole (not shown), which is formed vertically through the drawer bracket 130 such that one end of a corresponding one of the suspension members is inserted into and supported by the drawer bracket 130.
  • Each of the drawer brackets 130 is provided with a recess (not shown), which extends in one direction in order to guide the insertion of each of the suspension members into a corresponding one of the suspension holes 132.
  • the drawer panel 124 is disposed such that a portion of the drawer panel 124 is opposite the front edge 112 of the cabinet 110.
  • the drawer panel 124 is disposed at the front of the drawer body 122. A portion of the drawer panel 124 may contact the front edge 112 of the cabinet 110 in order to limit the rearward movement of the drawer body 122.
  • the drawer panel 124 may be provided with a control panel 128 for allowing a control command related to the operation of the laundry treatment apparatus 100 to be input or outputting the operational state of the laundry treatment apparatus 100.
  • the top cover 140 is disposed at the top of the drawer body 122.
  • the top cover 140 is provided with an entrance 142, through which laundry is introduced and removed.
  • the top cover 140 is disposed along the outer circumference of the door 190, a description of which will follow, so as to be spaced apart from the door 190 by a predetermined distance.
  • the door 190 which is connected to the tub 170, may also vibrate. Since the top cover 140 is disposed along the outer circumference of the door 190 so as to be spaced apart from the door 190 by a predetermined distance, the top cover 140 may not be affected by the vibration of the tub 170.
  • the top cover 140 may be provided with a water supply through-hole 144, through which one end of the water supply unit 240 extends.
  • the top cover 140 may be provided in the front thereof with at least one detergent introduction unit 154 for introducing detergent into the tub 170.
  • detergent introduction units 154 may be provided at opposite sides of the front of the drawer 120, which is adjacent to a user when the drawer 120 is withdrawn from the cabinet 110.
  • the detergent introduction units 154 may be disposed at the front corners of the top cover 140.
  • Each detergent introduction unit 154 includes an introduction bowl 156 formed in the top cover 140 so as to be recessed downwards.
  • An introduction hole 158, through which detergent is introduced into the tub 170, is formed in one side of the introduction bowl 156.
  • the top cover 140 may be formed at the top of the drawer body 122 so as to protrude in order to secure a storage space in the introduction bowl 156.
  • Each detergent introduction unit 154 is connected to the tub 170 via a detergent introduction pipe 160. Consequently, detergent stored in each detergent introduction unit 154 is supplied into the tub via the detergent introduction pipe 160.
  • the top cover 140 is provided at the outer edge thereof with fastening ribs, which are fastened to the drawer 120.
  • the top cover 140 is fastened to the drawer panel 124 at the front thereof, and is fastened to the drawer body 122 at the opposite sides and the rear thereof.
  • the side ends and the rear end of the top cover 140 are bent toward the drawer body 122 and are provided with fastening ribs, which are fastened to the drawer body 122.
  • the top cover 140 covers the remaining portion of the top of the tub 170 excluding the portion of the tub 170 corresponding to the door 190.
  • the top cover 140 includes a top part 146 formed at the top of the drawer 120 so as to be flat and a curved part 148 bent downwards from the top part 146 so as to be concave toward the door 190.
  • the top part 146 of the top cover 140 is spaced apart from a door panel 192 of the door 190, a description of which will follow, by a predetermined distance.
  • the top part 146 is formed at almost the same height as the door panel 192, and is spaced apart from the door panel 192 by a predetermined distance.
  • the top part 146 of the top cover 140 is formed at almost the same height as the door panel 192 in order to secure a space for temporarily storing detergent to be introduced into the introduction bowl 156 of each detergent introduction unit 154.
  • the curved part 148 is curved downwards toward the bottom of the door panel 192 and is disposed at the bottom of the door panel 192 so as to cover the top of the tub 170.
  • the tub 170 defines a space for storing wash water to be used to treat laundry.
  • the tub 170 is disposed in the drawer 120.
  • the tub has a cylindrical shape that is hollow therein and is partially open at the top thereof.
  • the tub 170 includes a tub body 172, which defines a space for storing water, the tub body 172 being open at the top thereof, and a tub cover 176, which defines the top of the tub body 172.
  • the tub body 172 has a cylindrical shape that is open at the top thereof.
  • the bottom of the tub body 172 is connected to the drainage unit 250, which drains wash water from the tub 170.
  • the tub brackets 174 At the outer circumference of the tub body 172 are formed tub brackets 174, to which the suspension members are connected.
  • the tub brackets 174 are disposed at the lower circumferential surface of the tub 170.
  • the tub brackets 174 are disposed so as to correspond to the respective drawer brackets 130.
  • the suspension members are connected to the tub brackets 174 via the drawer brackets 130 of the drawer 120 in order to connect the tub 170 to the drawer 120.
  • the tub cover 176 is provided with a laundry introduction port 178, through which the inside of the tub body 172 communicates with the outside of the tub body 172.
  • the laundry introduction port 178 may be formed at the lower side of the entrance 142, which is formed in the top cover 140.
  • the tub cover 176 is provided with a water supply port 180, through which water is supplied into the tub body 172.
  • the water supply port 180 may be disposed at the lower side of the water supply through-hole 144, which is formed in the top cover 140.
  • the door 190 which opens and closes the laundry introduction port 178, is disposed at the upper side of the laundry introduction port 178 of the tub cover 176.
  • the door 190 is rotatably disposed at the upper side of the tub cover 176.
  • the door 190 is hingedly fixed to the upper side of the tub cover 176.
  • the door 190 may open the laundry introduction port 178 of the tub cover 176 such that the inside of the tub body 172 communicates with the outside of the tub body 172, or may close the laundry introduction port 178 of the tub cover 176 in order to prevent the water in the tub 170 from leaking to the outside.
  • the door 190 includes a door panel 192 for covering the open top of the tub 170, a sealing member 194 for sealing between the tub 170 and the door 190 when the door 190 closes the laundry introduction port 178 of the tub 170, and a connection member 196 for hingedly fixing the door panel 192 to the tub 170, the sealing member 194 being mounted to one side of the connection member 196.
  • the door 190 may further include a hinge unit 198 disposed at one side of the door panel 192 for hingedly fixing the door panel 192 to one side of the tub cover 176.
  • the hinge unit 198 may be disposed at one side of the rear of the connection member 196.
  • the door 190 may further include a fixing member 200 for fixing the door 190 to one side of the tub 170 when the door 190 closes the laundry introduction port 178 of the tub 170.
  • the fixing member 200 is disposed in front of the connection member 196.
  • a one-touch click button which is locked or unlocked by pushing, may be used as the fixing member 200.
  • the door panel 192 may open and close the laundry introduction port 178 of the tub cover 176.
  • the door panel 192 is formed so as to be larger than the laundry introduction port 178 of the tub cover 176.
  • the sealing member 194 is disposed at the lower side of the door panel 192.
  • the sealing member 194 forms a seal between the door panel 192 and the tub cover 176 when the door 190 closes the laundry introduction port 178 of the tub cover 176.
  • the drum 210 is rotatably disposed in the tub 170.
  • the drum 210 has a cylindrical shape that is open at the top thereof.
  • the open top of the drum 210 is disposed at the lower side of the laundry introduction port 178 of the tub 170.
  • the drum 210 may include a balancer for preventing the drum 210 from vibrating excessively due to the eccentricity of laundry when the drum 210 is rotated by a driving unit 220.
  • the drum 210 is provided in the bottom surface and the circumferential surface thereof with a plurality of communication holes 212, through which the inside of the drum 210 communicates with the tub 170.
  • the drum 210 is rotated in the tub 170 by the driving unit 220.
  • the drum 210 is provided on the bottom surface thereof with at least one washing protrusion 214, which protrudes from the bottom surface of the drum 210 to generate a water current during the rotation of the drum 210.
  • the driving unit 220 includes a stator, a rotor configured to be rotated by a rotating field generated by the stator, and a rotary shaft for transmitting the rotational force of the rotor to the drum 210.
  • the laundry treatment apparatus further includes a water supply unit 240 for supplying water to the tub 170 and a drainage unit 250 for discharging the wash water stored in the tub 170 to the outside.
  • the water supply unit 240 includes a water supply pipe 242, which is connected to the water supply through-hole 144 in the tub cover 176, and a water supply valve 244 for allowing or interrupting the supply of water to the water supply pipe 242.
  • a portion of the water supply pipe 242 may be formed as a bellows pipe in order to prevent the water supply pipe 242 from being separated from the tub 170 due to the vibration of the tub 170 or such that the length of the water supply pipe 242 is adjustable when the drawer 120 is withdrawn.
  • the top cover 140 may further include a water supply port cover 150 for preventing a portion of the water supply valve 244 from being exposed to the outside when the drawer 120 is withdrawn.
  • the drainage unit 250 may include a drainage pipe 252 disposed at the lower side of the tub 170 for defining a drainage channel and a drainage pump 254 for pumping the wash water flowing in the drainage channel out of the laundry treatment apparatus 100.
  • the drainage unit 250 may be disposed between the tub 170 and the drawer 120.
  • a portion of the drainage pipe 252 may be formed as a bellows pipe in order to prevent the drainage pipe 252 from being separated from the tub 170 due to the vibration of the tub 170 or such that the length of the drainage pipe 252 is adjustable when the drawer 120 is withdrawn.
  • FIG. 8 is a block diagram schematically showing the control construction of the first laundry treatment apparatus according to the embodiment of the present invention.
  • the first laundry treatment apparatus includes a manipulation unit 330, an output unit 340, a sensor unit 350, a driving controller 360, a water supply unit 240, a drainage unit 380, a heater driving unit 370, a communication unit 390, a memory 320, and a controller 310 for controlling the overall operation thereof.
  • the manipulation unit 330 includes input means, such as at least one button, a switch, and a touchpad, which are provided at the control panel 128.
  • the manipulation unit 330 allows operation settings, including power on/off, operation mode, kind of laundry, washing course, water level, and temperature, to be input.
  • operation settings including power on/off, operation mode, kind of laundry, washing course, water level, and temperature.
  • data regarding the operation settings are input to the controller 310.
  • the manipulation unit 330 may include a twin washing key (not shown) for allowing the two laundry treatment apparatus to be operated together.
  • the output unit 340 outputs information about the operation settings and the operational state of the laundry treatment apparatus.
  • the output unit 340 includes a display for displaying a combination of one of more selected from among letters, numerical icons, images, and special characters on a screen, a lamp for indicating the operational state of the laundry treatment apparatus depending on lighting thereof, and a speaker or a buzzer for outputting a predetermined effect sound or warning sound.
  • the display may include a menu screen for operation settings and operation control of the laundry treatment apparatus, and may output an announcement message or a warning message including a combination of one or more selected from among letters, numbers, and images for operation settings and operation control of the laundry treatment apparatus.
  • the output unit 340 may output a warning sound or a warning message when the laundry treatment apparatus is in an abnormal state.
  • the memory 320 stores control data for operation control of the laundry treatment apparatus, data regarding the input operation settings, data regarding operation time calculated based on settings, data regarding a washing course, and data for determining whether errors have occurred.
  • the memory 320 stores data that is generated during the operation of the laundry treatment apparatus or sensed by the sensor unit 350 and data that is transmitted and received through the communication unit 390.
  • the memory 320 may be a hardware storage device, such as a ROM, a RAM, an EPROM, a flash drive, and a hard drive.
  • the communication unit 390 transmits and receives data in a wired or wireless fashion.
  • the communication unit 390 may be connected to a network provided in a building or within a predetermined distance, such as a home network, in order to transmit and receive data.
  • the communication unit 390 may be connected to an external server, such as the Internet, in order to communicate with a terminal having a control function.
  • the communication unit 390 may transmit the operational state of the laundry treatment apparatus to a terminal or to another laundry treatment apparatus, and may receive a control command from the terminal or from an external server.
  • the communication unit 390 may transmit and receive data regarding the operation settings or the operational state of the second laundry treatment apparatus to and from the second laundry treatment apparatus such that the laundry treatment apparatuses can be operated together.
  • the laundry treatment apparatuses may not simultaneously perform operations that generate vibrations based on received data.
  • the communication unit 390 transmits and receives data using short-distance wireless communication, such as ZigBee, Bluetooth, WiFi, or WiBro.
  • short-distance wireless communication such as ZigBee, Bluetooth, WiFi, or WiBro.
  • a power supply unit (not shown) converts commercial power supplied from the outside into operation power and supplies the converted operation power.
  • the power supply unit interrupts the supply of overcurrent.
  • the power supply unit rectifies and smooths power supplied from the outside in order to supply a predetermined operation power.
  • the sensor unit 350 which includes a plurality of sensors, measures the voltage or current of the laundry treatment apparatus and senses the rotational speed of a motor, a water level, temperature, and humidity. The measured and sensed values are input to the controller 310.
  • the sensor unit 350 may include a door sensor (not shown), a temperature sensor (not shown), a current sensor (not shown), and a water level sensor.
  • the sensor unit 350 may further include a speed sensor for sensing the rotational speed of the motor, a humidity sensor, and a laundry sensor for sensing the state/material of laundry.
  • the temperature sensor senses the temperature in the laundry treatment apparatus and the water temperature.
  • a plurality of temperature sensors may be provided at different positions in order to sense temperature.
  • the water level sensor senses the level of water that is supplied to the tub 170.
  • the current sensor senses current that is supplied to the motor.
  • the door sensor senses whether the door is open or closed. Before the laundry treatment apparatus is operated based on the settings, the door sensor senses whether the door is open or closed, and transmits a sensing signal to the controller 310. In addition, the door sensor may sense whether laundry is caught in the door.
  • the driving controller 360 performs control such that current is supplied to the driving unit 220 and then the driving unit is rotated.
  • the driving controller 360 converts power supplied from the outside into power necessary to rotate the driving unit 220 in order to control the operation of the driving unit 220.
  • the driving unit 220 is a motor.
  • the driving controller 360 controls the rotational direction, the rotational angle, and the rotational speed of the driving unit 220 in response to a control command from the controller 310.
  • the driving controller 360 performs control such that the driving unit 220 is operated differently based on the set washing course and on whether washing, rinsing, or spin-drying is to be performed.
  • the driving controller 360 differently controls the rotational direction, the rotational angle, and the rotational speed of the driving unit such that the wash water in the drum generates a water current having a specific form.
  • the water supply unit 240 controls the opening and closing of the water supply valve 244 and a first valve. Based on washing and rinsing cycles, the water supply unit 240 continuously supplies water or supplies water for a predetermined amount of time and then interrupts the supply of water, which is repeatedly performed such that water is intermittently supplied. At the time of final rinsing during the rinsing cycle, the water supply unit 240 controls the first valve such that water is supplied to the first introduction unit 155.
  • the drainage unit 380 controls the opening and closing of a drainage valve 381 and the operation of a drainage pump 382 such that the water in the tub 170 is discharged to the outside through a drainage hose.
  • the heater driving unit 370 supplies power to a heater 379 such that the heater 379 is turned on/off and controls the temperature of the heater 379.
  • the heater 379 generates heat at a predetermined temperature in order to heat the water in the tub.
  • the heater driving unit 370 may control the heater 379 such that laundry is dried using heat generated by the heater 379.
  • a plurality of heaters 379 such as a heater 379 for heating wash water and a heater 379 for drying laundry, may be provided.
  • the heater 379 for heating wash water and the heater 379 for drying laundry may be separately provided. In this case, separate heater driving units 370 may also be provided.
  • the controller 310 controls a series of washing procedures, including washing, rinsing, spin-drying, and drying.
  • washing refers to all operations of the laundry treatment apparatus, including a washing cycle, a rinsing cycle, a spin-drying cycle, and a drying cycle.
  • the controller 310 stores the operation settings in the memory 320 and signals a water level, temperature, and control pattern based on a washing course corresponding to the data stored in the memory in order to control the operation of the laundry treatment apparatus.
  • the controller 310 performs control such that the operation settings or the operational state of the laundry treatment apparatus is output through the output unit 340. In addition, the controller 310 performs control such that data is transmitted to the outside through the communication unit 390 and such that data received from the outside through the communication unit 390 is processed. The controller 310 may change the operation settings such that the laundry treatment apparatus is operated together with another laundry treatment apparatus based on data of the another laundry treatment apparatus received through the communication unit 390.
  • the controller 310 controls the water supply unit 240 and the drainage unit 380 such that water is supplied to the tub 170 and water is drained from the tub 170 depending on the operation settings, and transmits a control command to the driving controller 360 such that the drum is rotated to perform washing according to the operation of the driving unit. In addition, the controller 310 transmits a control command to the heater 379 such that the heater 379 heats wash water or such that a drying cycle is performed.
  • the controller 310 controls the water supply unit 240 such that water is directly introduced into the tub or is supplied into the tub through the first introduction unit 155 or the second introduction unit 152 through the opening and closing of the water supply valve 244 and the first valve.
  • the water supply unit 240 controls the opening and closing of the water supply valve 244 and the first valve in response to a control command of the controller 310.
  • the controller 310 may control the water supply unit 240 in order to adjust the flow channel of water that is supplied.
  • the water supply unit 240 directly introduces some of the supplied water into the tub and introduces some of the supplied water into the tub through the first introduction unit 155 such that the additive (detergent or fabric softener) in the first introduction unit 155 is introduced into the tub together with the water.
  • the controller 310 sets a target water level based on a washing course and sets an operation time based on the washing course and laundry weight. In the case in which the water temperature is set, the controller 310 sets the operation time based on a basic heating time. The controller 310 performs control such that the operation time is displayed through a display of the output unit 340.
  • the controller 310 determines whether the heater 379 is driven depending on the operation settings. In the case in which the water temperature is set as cold water based on the operation settings, the controller 310 determines that heating is unnecessary. In addition, the controller 310 determines whether heating is necessary depending on the washing course.
  • the controller 310 compares the temperature of water sensed by a temperature sensor of the sensor unit 350 during the supply of water with the set water temperature, sets a heating time based on the temperature difference, and resets the operation time in consideration of the heating time.
  • the controller 310 transmits a control command to the heater driving unit 370 such that the heater 379 is operated based on the temperature difference.
  • the heater driving unit 370 supplies current of a predetermined magnitude to the heater 379 according to the control command such that the heater 379 is operated.
  • FIG. 9 is a reference view illustrating resetting of the operation time of the first laundry treatment apparatus according to the embodiment of the present invention based on the flow of operation thereof.
  • the controller 310 sets a target water level based on the operation settings, i.e. a washing course and water temperature, and calculates an operation time based on the washing course and laundry weight. Since the first laundry treatment apparatus includes a small-sized tub, the water level and the operation time may be set based on the washing course irrespective of the laundry weight.
  • the controller 310 determines whether heating is necessary based on the washing course and the water temperature. In the case in which it is necessary to heat water, the controller 310 sets an operation time including a basic heating time.
  • the controller 310 performs control such that the operation time is displayed on the display of the output unit.
  • the controller 310 performs control such that the operation time is primarily displayed before water is supplied.
  • the controller 310 controls the water supply unit 240 such that water is supplied to the tub 170.
  • the temperature sensor of the sensor unit 350 senses the temperature of the water in the tub, and the controller 310 compares the sensed temperature of the water with a predetermined water temperature in order to calculate the temperature difference.
  • the controller 310 sets the heating time based on the water level and the temperature difference and resets the operation time in consideration of the heating time. Since the heating time is variable depending on the amount (level) of water and the temperature of water in the case in which the same heater is used, the controller 310 calculates the heating time based on the water level and the temperature difference and resets the operation time.
  • the controller 310 performs control such that the reset operation time is displayed on the display of the output unit 340.
  • the heater driving unit 370 supplies current to the heater 379 in response to a control command from the controller, and the heater 379 generates heat at a predetermined temperature in order to heat water (wash water).
  • the controller 310 transmits a control command to the driving controller 360.
  • the driving unit 220 is rotated to perform washing.
  • the laundry treatment apparatus removes contaminants from laundry through washing, rinsing, and spin-drying.
  • the controller 310 performs control such that the spin-dried laundry is dried based on settings.
  • FIG. 10 is a reference view illustrating the wash water heating time of the first laundry treatment apparatus according to the embodiment of the present invention based on the water level thereof.
  • the water temperature is changed by heating.
  • the water level is changed depending on a washing course, and the water temperature is changed during heating depending on the water level.
  • Course B (S2) is a course for washing a small amount of laundry.
  • the target water level of course B (S2) is set so as to be lower than that of course A (S1).
  • course A and course B are controlled in the state of having the same initial water temperature, i.e. a first temperature Tm1
  • course A and course B have the same initial water temperature and the target water temperature. Since the water levels of course A and course B are different from each other, however, the rate of change in the water temperature of course A is different from that of the water temperature of course B.
  • the sensed water temperature of course A is a second temperature Tm2, and the sensed water temperature of course B is a third temperature Tm3.
  • course A has the second temperature Tm2 at the first time t01
  • course B has the second temperature Tm2 at a second time t02.
  • the controller 310 calculates the heating time based on the water level and the difference between the sensed water temperature and the target water temperature in order to reset the operation time.
  • the water level may be variable depending on the washing course or laundry weight.
  • the controller 310 divides the water level into a plurality of water levels, and designates different temperature change rates for the respective water levels in order to calculate the heating time. For example, the controller 310 designates a temperature change rate according to a first condition for a water level lower than a first water level in order to calculate the heating time, and designates a temperature change rate according to a second condition for a water level equal to or higher than the first water level in order to calculate the heating time.
  • the first level may be set to be the average of target water levels set for respective courses.
  • the controller 310 may calculate the heating time under a condition in which the water temperature is changed by 0.6 °C per minute for a water level equal to or higher than the first water level, and may calculate the heating time under a condition in which the water temperature is changed by 1 °C per minute for a water level lower than the first water level.
  • FIG. 11 is a flowchart showing a control method of the first laundry treatment apparatus according to the embodiment of the present invention.
  • the controller 310 calculates an operation time based on a washing course and on whether heating is necessary (S320).
  • the controller calculates an operation time including a predetermined basic heating time.
  • the controller may sense laundry weight, and may calculate the operation time based on the sensed laundry weight. Since the first laundry treatment apparatus includes a small-sized tub having a capacity smaller than a predetermined capacity, however, the water level may be set based on the washing course.
  • the controller 310 transmits the calculated operation time to the output unit 340, and the display outputs the operation time (S330).
  • the controller 310 controls the water supply unit 240 such that the water supply valve is open to supply water to the tub (S340).
  • the controller 310 determines whether heating is necessary depending on the operation settings (S350).
  • the controller 310 determines that heating is unnecessary, and controls the driving controller 360 such that washing is performed when the supply of water is completed without resetting the operation time (S400).
  • the controller 310 may determine that heating is unnecessary.
  • the temperature sensor of the sensor unit 350 senses the temperature of the water in the tub
  • the water level sensor senses the level of the water in the tub (S360).
  • the controller 310 compares the sensed water temperature with the target water temperature based on the operation settings in order to calculate the temperature difference and sets a condition according to the temperature change rate depending on the water level to calculate the heating time.
  • the controller recalculates the operation time in consideration of the calculated heating time (S370).
  • the controller 310 calculates the heating time based on the target water level that is set depending on the washing course.
  • the controller 310 sets the heating time to 10 minutes and recalculates the operation time.
  • the controller 310 transmits the recalculated operation time to the output unit 340, and the display outputs the changed operation time (S380).
  • the heater driving unit 270 drives the heater 379 in response to a control command from the controller 310 such that the water in the tub is heated by the heat generated from the heater (S390).
  • the heater driving unit 270 may start heating before the supply of water is completed.
  • the driving controller 360 controls the driving unit 220 according to the control command of the controller 310 such that the driving unit 220 is rotated to perform washing (S400).
  • FIG. 12 is a flowchart showing an operation time resetting method of the first laundry treatment apparatus according to the embodiment of the present invention.
  • the water supply unit 240 controls the water supply valve 244 such that water is introduced into the tub 170 (S470).
  • the controller 310 determines whether heating is necessary (S480). In the case in which heating is unnecessary, washing is performed without heating when the supply of water is completed (S570).
  • the controller 310 determines that heating is unnecessary.
  • the temperature sensor of the sensor unit 350 senses the temperature of the water that is introduced into the tub 170, and the water level sensor senses the level of the water that is introduced into the tub 170 (S490).
  • the sensor unit 350 compares the sensed water temperature with the water temperature based on the operation settings to calculate the temperature difference (S500).
  • the controller 310 determines whether the water level is equal to or higher than a predetermined water level (S510).
  • the controller 310 may determine whether the target water level set depending on the washing course is equal to or higher than the predetermined water level. In addition, the controller 310 may compare the water level sensed by the water level sensor when the supply of water is completed with the predetermined water level.
  • the water level sensed by the water level sensor may be represented by a frequency value. When the water level increases, the frequency value decreases.
  • the controller 310 sets the heating time according to a first criterion based on the change in water temperature during heating (S520). Also, in the case in which the water level is equal to or lower than the predetermined water level, the controller 310 sets the heating time according to a second criterion based on the change in water temperature (S530).
  • the heating time may be set based on the first criterion, and in the case of washing a small amount of laundry, such as washing of underwear or baby clothes, in which washing is performed at a low water level, the heating time may be set based on the second criterion.
  • the heating time may be calculated such that the water temperature is increased by 1 °C per minute.
  • the heating time may be calculated such that the water temperature is increased by 0.6 °C per minute.
  • the controller 310 recalculates the operation time based on the heating time (S540).
  • the controller 310 transmits the operation time to the output unit 340, and the display outputs the operation time.
  • the controller 310 transmits a control command to the heater driving unit such that water is heated, and transmits a control command to the driving controller such that washing is performed.
  • the heater driving unit 370 drives the heater 379 in response to the control command from the controller 310 such that the water in the tub is heated by the heater (S560).
  • the driving controller 360 rotates the driving unit 220 in response to the control command from the controller 310. As a result, the drum is rotated in alternating directions to perform washing (S570).
  • the heating time is calculated differently depending on the washing course or the water level, and operation time is reset. Consequently, it is possible to display an operation time that is near the actual operation time.
  • a laundry treatment apparatus According to the present invention and a control method thereof to determine whether to heat wash water based on the difference between a set temperature and the temperature of water that is supplied.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (14)

  1. Wäschebehandlungsvorrichtung (100), die aufweist:
    einen Bottich (170), der darin einen Raum zum Speichern von Waschwasser aufweist;
    eine Trommel (210), die drehbar im Bottich (170) angeordnet ist;
    eine Heizung (379) zum Erwärmen des Waschwassers im Bottich (170);
    einen Temperatursensor zum Erfassen einer Temperatur des Waschwassers;
    einen Wasserstandsensor zum Erfassen eines Stands des Waschwassers;
    eine Ausgabeeinheit (340) zum Anzeigen von Betriebseinstellungen und eines Betriebszustands davon; und
    eine Steuerung (310) zum primären Berechnen einer Betriebszeit basierend auf den Betriebseinstellungen und zum Ausgeben der primär berechneten Betriebszeit über die Ausgabeeinheit (340) und zum Berechnen einer Heizzeit basierend auf einem Zustand des dem Bottich (170) zugeführtem Waschwassers und zum Neuberechnen der Betriebszeit, so dass die Heizzeit in der Betriebszeit enthalten ist, und zum Ausgeben der neu berechneten Betriebszeit durch die Ausgabeeinheit (340), wenn die Zufuhr von Waschwasser in den Bottich beendet ist, und
    wobei der Zustand des dem Bottich (170) zugeführten Waschwassers die vom Temperatursensor während der Zufuhr des Wasser erfasste Wassertemperatur und den vom Wasserstandsensor erfassten Stand des dem Bottich zugeführten Waschwassers enthält,
    wobei die Steuerung den Stand des Waschwassers in mehrere Wasserstände unterteilt und unterschiedliche Temperaturänderungsraten auf die jeweiligen Wasserstände anwendet, um die Heizzeit zu berechnen.
  2. Wäschebehandlungsvorrichtung (100) nach Anspruch 1, wobei die Steuerung (310) konfiguriert ist, eine Differenz zwischen der vom Temperatursensor erfassten Wassertemperatur und einer Zielwassertemperatur basierend auf den Betriebseinstellungen zu berechnen, um die Heizzeit zu berechnen.
  3. Wäschebehandlungsvorrichtung (100) nach Anspruch 1 oder 2, wobei in einem Fall, in dem der Stand des Waschwassers höher als ein vorbestimmter Wasserstand ist, die Steuerung (310) konfiguriert ist, die Heizzeit gemäß einer ersten Temperaturänderungsrate zu berechnen, und
    in einem Fall, in dem der Stand des Waschwassers gleich oder niedriger als der vorbestimmte Wasserstand ist, die Steuerung (310) konfiguriert ist, die Heizzeit gemäß einer zweiten Temperaturänderungsrate zu berechnen.
  4. Wäschebehandlungsvorrichtung (100) nach einem der Ansprüche 1 bis 3, wobei die Steuerung (310) konfiguriert ist, die Heizzeit unter Verwendung des vom Wasserstandsensor erfassten Wasserstands oder eines Zielwasserstands zu berechnen, der für jeden Waschgang gemäß den Betriebseinstellungen als der Stand des Waschwassers bestimmt wird.
  5. Wäschebehandlungsvorrichtung (100) nach einem der Ansprüche 1 bis 4, wobei die Steuerung (310) konfiguriert ist, die Betriebszeit primär basierend auf einem Waschgang gemäß den Betriebseinstellungen und einer vorbestimmten Grundheizzeit zu berechnen.
  6. Wäschebehandlungsvorrichtung (100) nach einem der Ansprüche 1 bis 5, wobei die Ausgabeeinheit (340) konfiguriert ist, primär die Betriebszeit auszugeben, nachdem die Betriebseinstellungen gemäß einem Steuerbefehl der Steuerung (310) eingegeben wurden, und sekundär die neu berechnete Betriebszeit auszugeben, wenn die Zufuhr von Wasser in den Bottich (170) abgeschlossen ist.
  7. Wäschebehandlungsvorrichtung nach Anspruch 1, wobei die Ausgabeeinheit eine Anzeige aufweist, und
    wobei die Anzeige konfiguriert ist, mindestens eine der Informationen über die Temperatur des Waschwassers, den Stand des Waschwassers, die primär berechnete Betriebszeit und die neu berechnete Betriebszeit auszugeben.
  8. Steuerungsverfahren für eine Wäschebehandlungsvorrichtung (100), wobei das Steuerungsverfahren aufweist:
    Eingeben von Betriebseinstellungen;
    primäres Berechnen einer Betriebszeit basierend auf einem Waschgang gemäß den Betriebseinstellungen und Ausgeben der primär berechneten Betriebszeit;
    Erfassen einer Temperatur des einem Bottich (170) zugeführten Waschwassers;
    Erfassen eines Stands des Waschwassers;
    Berechnen einer Heizzeit basierend auf einem Zustand des dem Bottich (170) zugeführten Waschwassers;
    Neuberechnen der Betriebszeit, so dass die Heizzeit in der Betriebszeit enthalten ist; und sekundäres Ausgeben der neu berechneten Betriebszeit, wenn die Zufuhr von Wasser in den Bottich (170) abgeschlossen ist, wobei der Zustand des dem Bottich (170) zugeführten Waschwassers die von einem Temperatursensor während der Zufuhr von Wasser erfasste Wassertemperatur und den von einem Wasserstandsensor erfassten Stand des dem Bottich zugeführten Waschwassers enthält,
    wobei der Schritt des Neuberechnens der Betriebszeit das Aufteilen des Stands des Waschwassers in mehrere Wasserstände und das Anwenden unterschiedlicher Temperaturänderungsraten auf die jeweiligen Wasserstand aufweist, um die Heizzeit zu berechnen.
  9. Steuerungsverfahren nach Anspruch 8, wobei der Schritt des Neuberechnens der Betriebszeit aufweist:
    Berechnen einer Differenz zwischen der Temperatur des Waschwassers und einer Zielwassertemperatur basierend auf den Betriebseinstellungen; und
    Berechnen einer Heizzeit gemäß einer Temperaturänderungsrate, die in Abhängigkeit vom Stand des Waschwassers eingestellt wird.
  10. Steuerungsverfahren nach Anspruch 8 oder 9, wobei der Schritt des Neuberechnens der Betriebszeit aufweist:
    in einem Fall, in dem der Stand des Waschwassers höher als ein vorbestimmter Wasserstand ist, Berechnen der Heizzeit gemäß einer ersten Temperaturänderungsrate; und
    in einem Fall, in dem der Stand des Waschwassers gleich oder niedriger als der vorbestimmte Wasserstand ist, Berechnen der Heizzeit gemäß einer zweiten Temperaturänderungsrate.
  11. Steuerungsverfahren nach einem der Ansprüche 8 bis 10, wobei der Schritt des Neuberechnens der Betriebszeit das Berechnen der Heizzeit unter Verwendung von einem eines von einem Wasserstandsensor erfassten Wasserstands und eines Zielwasserstands aufweist, der für jeden Waschgang gemäß den Betriebseinstellungen als der Stand des Waschwassers bestimmt wird.
  12. Steuerungsverfahren nach einem der Ansprüche 8 bis 11, wobei der Schritt des primären Ausgebens der Betriebszeit das Berechnen der Betriebszeit basierend auf einem Waschgang gemäß den Betriebseinstellungen und einer vorbestimmten Grundheizzeit aufweist.
  13. Steuerungsverfahren nach einem der Ansprüche 8 bis 12, das ferner das Bestimmen, dass ein Heizen unnötig ist, und das Beibehalten der primär berechneten Betriebszeit in dem Fall, in dem das Waschen gemäß den Betriebseinstellungen ein Waschen unter Verwendung von kaltem Wasser ist, dem Fall, in dem die Wassertemperatur gleich einer Zielwassertemperatur ist, oder dem Fall, in dem eine Wassertemperaturdifferenz innerhalb eines Fehlerbereichs liegt, aufweist.
  14. Steuerungsverfahren nach Anspruch 8, das ferner das Ausgeben mindestens einer von Informationen über die Temperatur des Waschwassers, den Stand des Waschwassers, die primär berechnete Betriebszeit und die neu berechnete Betriebszeit aufweist.
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US20190194861A1 (en) 2019-06-27
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AU2018286576A1 (en) 2019-07-11
CN109972346A (zh) 2019-07-05
EP3505671A1 (de) 2019-07-03
CN109972346B (zh) 2022-05-31

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